Signal grey vs Window grey
Both are RAL Classic colors. Hue-wise, Signal grey belongs to the grey family and Window grey to the blue-grey family. With LRVs of 35 and 36, they'll behave almost identically in terms of how much light they reflect back into a room. With a ΔE of 2.6, the difference is subtle — you'd need them side by side to reliably tell them apart. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Signal grey vs Window grey in Real Spaces
1 real room side by side. Signal grey and Window grey are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The two are close enough that the choice comes down to finer qualities — undertone, texture, what the color sits next to.
Color Details
Signal grey vs Window grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Signal grey on one side and Window grey on the other.
Digital color is approximate. These simulations are generated from the manufacturer's hex values and overlaid on grayscale room photos — your screen's calibration, brightness, and viewing angle all affect how they render. Before committing to either color, test physical samples in your own space under the light you actually live with.
More Signal grey comparisons
See how Signal grey stacks up against other well-photographed colors across different brands and tones.
